Tea with added grass. Gets you spaced, hence space tea.
Take a cafetiere about 2 mugfulls big and put 3 teabags of your choice into it (I prefer citrus fruit flavour though peppermint works well too) and about 1 small bud of green, chopped or pulled apart. Add the boiling water and wait about 5-10 minutes. Press down the plunger a few times to mix it all up & serve, preferably in small glasses such as moroccan tea glasses. Add sugar to taste, drink. Get spaced. Watch an old 70's sci fi DVD at double speed with the sound off and play some chilling muzak. Chat. Giggle.